Automobile bumper



an. 6, 1923. LMWIM F. G. WHXTTINGTON AUTOMOBILE BUMPER Original FiledAug. 6, 1921 Fatented Mar. 6, 1923';

' 1 11m as; a s 3: i v

'WARNER SPEEDOMETER CORPORATION, OF

TION OF VIRGINIA.

Continuation of application Serial No. 490,360, filed August 6, 1921.

CHICAGO, ILLINOIS, CORPORA- AUTOIVIOBILE BUMPER.

This application filed October 15,

1921. Serial No. 507,941.

To allwlzom z'tmay concern: Be it known that I, F REDERIK GJlVHI'rrmeronja citizen of the United States, residing in Evanston, inthe county of Cook and State of Illinois, have invented certain new anduseful Improvements in Automobile Bumpers, of which the following is aspecification, reference being had to the accompanying drawings, forminga part thereof.

This application is a continuation 6, 1921, and allowed August 31st,1921. The purpose of the present invention which one of its forms isshown in said application No. 490,360, is to provide an improvedconstruction of a plural spring bar bumper for automobiles. It consistsin the elements and features of construction sh wn and described, asindicated in the cfaim.

In the drawings 1 Figure 1 is a perspective view of a bumper embodyingthis invention in one form.

Figure 2 is a similar viewof amodification.

Figure 3 is a. similar view modification.

Figure 4 is a section at the line, 4-4, on said Figure 1 or Figure 2.

Figure 5 is a section at the line, 5-5, on Figure ,3.

The bumper shown in Figures 1 and 4 of the drawings comprises twoidentically formed spring bars, 1, 1, each having its opposite endsreflexed to form loop ends, 2, the two spring bars being mounted forextending reversely of' the vehicle in substan-- .tially the samevertical plane, and spaced apart in that plane; and the reflexed loopends of the two bars extend directly behind the forward impact portionsof the bars respectively, so that said loops of the two bars at each endare substantially parallel to each other,-that is, they are spaced apartfrom each other substantially the same distance as the two bars arespaced apart at their impact portions, and said loo-p ends of the twobars are therefore not connected together but constitute independentloops for guarding the wheel. These two spring bars, 1, 1, having theloop ends, 2, 2, as described, are secured together for mounting on thevehicle, by means of vertical cross ties which are preferably in theform of two-membered members between the two bars. of my-v applicationserial No. 490,360 filed August of another clamps, 4 '5, between whichat the upperand lower en s, the upper and lower bars, 1, 1, are seatedin the. opposed faces of said clamped members and clamped together, saidclamped members being recessed in their said opposed faces to formpositioning seats for the spring impact bars. The clamping is effectedby b0lts, 6, engaging the two clamp spring impact ,F or convenience ofassembling and simplicity of construction, the bolts, 6, 6, which securethe two clamp members and clamp them together for clamping the springimpact bars between them, serve also for securing the impact member as awhole to the supporting arms, 8, 8,'b which the bumper: is mounted onthe vehiclb side bars.

Figure 2 shows a modification of the invention which consists interminating one of the two spring impact bars, designated in Figure 2 as1", just outward from the cross ties, 4, 5. The cross ties and securemntof the bars together, and to the supporting spring arms, 8, 8, which areidentical with the form shown 1n Figure 1,'as indicated by the identicalsectional View of Figure 4, made on either Figure 1 or Figure 2.

F igures 3 and 5 show a further modification consisting in adding to theform shown in Figure 2, a third spring bar, l the two bars, 1", and P,being equally spaced respectively above and below the bar, 1. The clampdevice in this form follows the same general rule of construction as inthe other forms, in that it consists of two\ clamp members, 4 and 5",having in their opposed inner faces seats for each of the three bars, 1,,1 and 1, and in having the bolt which clamps the two clamp memberstogether for securing them upon the impact bars and securing the barstogether, extendingv between the said impact bars respectively. In thisform the sprlng-supportin arms, 8, 8, instead of being engaged by t ebolts, are clam'ped onto the middle one of the three impact bars, theforward ends of said supporting bars being lodged directly in the rearof said-middle bar.

Referring to the form shown'in Figures 1 and 2, and in the sectionFigure 4, it will be observed that the space between the two impact barsis less than the width of either bar, and particularly is less than thewidth of the spring supporting bar whoseforward end is marginal portionsof the positioned between the two impact bars. The result ofthis'arrengement of parts as to their respective dimensions, is that inclamping the parts together the Width of the supporting arm, 8. lappingpast the proximate two-impact bars causes a direct clamping to beeffected between said bars respectively, thereby avoiding' a tendency tospring the clamp member as it might be sprung in the interval betweenthe two impact bars was more than the width of the supporting arm, 8.

I claime- An automobile bumper comprising an impact member consisting ofa plurality of fiat spring impact oars set edgewise all in substantiallythe same vertical plane with vertical cross bars tyingthe impact barstogether near. their ends; one or more of the impact bars being extendedbeyond the cross bars and at the extended pert curved rearward and thenreflexed inward heck of the curved part to form inwardly-open loops withfree and unconnected ends, and supports for the impact member attachedto the cross bars.v

In testimony whereof, l have hereunto set my hand. at Chicago, Illinois,this 5th day of October. 1921.

FREDERIIQG. WHITTINGTON.

